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Abstract
In this paper the importance of reagent water quality for toxic element environmental analyses is discussed, and the suitability of fresh ultrapure water produced using Merck water purification systems for ICP-OES and ICP-MS trace element analyses in environmental laboratories is demonstrated.
Key words or phrases
Trace elements, metals, toxic elements, ICP-MS, ICP-OES, contamination, BEC, LOD, water quality, interferences
Introduction and Water Quality Requirements
Dramatic improvement in the...

Four conventional activated sludge sewage treatment plants (STPs) in Southern India were chosen to investigate the occurrence of major ions and trace metals in dissolved fraction of the wastewater. Samples were collected from inlet and outlet of STPs during the pre-monsoon and monsoon seasons. Except for a few elements (Mn, Mo and Ni), the concentrations of the rest increased at the outlet of STPs, suggesting that there is an addition of these elements during the treatment process. The increase in concentrations...

Industrial wastewater from the flue gas desulfurization (FGD) process is characterized by the presence of trace elements of concern, such as selenium (Se) and boron (B) and relatively high salinity. To simulate treatment that FGD wastewater undergoes during transport through soils in subsurface treatment systems, a column study (140-d duration) was conducted with native Kansas soil and saline FGD wastewater, containing high Se and B concentrations (170 μg/L Se and 5.3 mg/L B) and negligible arsenic (As) concentrati...

Iodine has a direct impact on growth rates as it is incorporated into the thyroid hormones which control metabolism, promoting efficient live weight gain.
Annie Williams, Animal Scientist with Agrimin says that many beef units fall short on achieving optimum growth rates because animals do not receive adequate levels of trace elements at grass.She says that with increased feed costs, many producers will be looking to get increased production from forage and that unless shortfalls in trace element supply from...

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